公开(公告)号：US20230249662A1

公开(公告)日：2023-08-10

申请号：US18012811

申请日：2021-06-12

Applicant: GUANGZHOU AUTOMOBILE GROUP CO., LTD.

Inventor： Xuan Luo ,  Weidong Zhang ,  Dongxu YI ,  Yang Cui

IPC: B60T17/22 ,  B60T13/46

CPC classification number: B60T17/22 ,  B60T13/46

Abstract: A method and device for failure detection of vacuum sensor is disclosure. The method includes: S1: obtaining a first vacuum pressure when a brake pedal is validly stamped; S2: determining whether a braking action by the brake pedal is maintained, wherein next S3 is performed if yes, and a detection is stopped if not; S3: obtaining a second vacuum pressure when the brake pedal is validly released; and S4: determining whether the second vacuum pressure is within a variable range of the first vacuum pressure, wherein the vacuum sensor is determined to have failed if yes; and, the vacuum sensor is determined to have not failed. The disclosure performs a logical control, and determines whether the vacuum sensor is blockage or failure, thus safety in traffic is ensured, and accidents that the braking action fails due to the blockage or failure of the vacuum sensor is avoided.

公开(公告)号：US11479223B1

公开(公告)日：2022-10-25

申请号：US17473986

申请日：2021-09-13

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

Inventor： Yongjun Choi ,  Euichul Choi ,  Young Ki Kim

IPC: G06F19/00 ,  B60T13/46 ,  B60T17/06 ,  B60T17/02 ,  B60T13/72 ,  F01L1/047 ,  F02M35/10 ,  F02B39/00 ,  F02M31/20 ,  F02D29/04 ,  F02B63/06

Abstract: A system for forming a negative pressure in a negative pressure reservoir of a brake system includes, an engine having an intake manifold and a camshaft, a vacuum pump connected to the camshaft through a clutch device and generating a pump negative pressure, a turbocharger having a compressor supplying a compressed air to the engine, a pump negative pressure line connecting the vacuum pump and the negative pressure reservoir and supplying the pump negative pressure to the negative pressure reservoir, an intake negative pressure line connecting the negative pressure reservoir and the intake manifold and supplying the intake negative pressure of the intake manifold to the negative pressure reservoir, and a negative pressure source selection apparatus configured to control opening and closing of the pump negative pressure line and the intake negative pressure line based on operation of the turbocharger.

公开(公告)号：US11067177B2

公开(公告)日：2021-07-20

申请号：US16404049

申请日：2019-05-06

Applicant: Dayco IP Holdings, LLC

Inventor： Brian M. Graichen ,  David E. Fletcher ,  Matthew C. Gilmer

IPC: F16K3/18 ,  F16K31/122 ,  F16K3/16 ,  B60T13/46 ,  F16K31/08 ,  F16K3/02 ,  F16K3/314 ,  F02M35/10 ,  B60T17/02 ,  F15B15/26

Abstract: Valves having a sprung gate of various constructions are disclosed. In one embodiment, the sprung gate includes a first endless elastic band having an inner perimeter defining an open space sandwiched between a first gate member and a second gate member that each define an opening therethrough in an open position portion thereof. The first endless elastic band is sandwiched therebetween with its open space oriented for alignment with the opening in both of the first and second gate members, which are aligned with one another to form a passage through the sprung gate. In one aspect, the first endless elastic band in positioned inward a distance from the outer sides of the first and second gate members and spaces the first gate member a distance apart from the second gate member thereby defining a channel having a bottom defined by the first endless elastic band.

公开(公告)号：US10323767B2

公开(公告)日：2019-06-18

申请号：US15820840

申请日：2017-11-22

Applicant: Dayco IP Holdings, LLC

Inventor： Brian M. Graichen ,  David E. Fletcher ,  Matt Gilmer

IPC: F16K3/16 ,  F16K3/18 ,  F16K31/122 ,  F16K31/08 ,  F16K3/02 ,  B60T13/46 ,  B60T17/02 ,  F02M35/10

Abstract: Valves having a sprung gate of various constructions are disclosed. In one embodiment, the sprung gate includes a first endless elastic band having an inner perimeter defining an open space sandwiched between a first gate member and a second gate member that each define an opening therethrough in an open position portion thereof. The first endless elastic band is sandwiched therebetween with its open space oriented for alignment with the opening in both of the first and second gate members, which are aligned with one another to form a passage through the sprung gate. In one aspect, the first endless elastic band in positioned inward a distance from the outer sides of the first and second gate members and spaces the first gate member a distance apart from the second gate member thereby defining a channel having a bottom defined by the first endless elastic band.

公开(公告)号：US09725080B1

公开(公告)日：2017-08-08

申请号：US12632049

申请日：2009-12-07

Applicant: Eric C. Wright ,  Howard E. Huber, Jr.

Inventor： Eric C. Wright ,  Howard E. Huber, Jr.

IPC: B60T13/74 ,  B60T13/46

CPC classification number: B60T13/465 ,  B60T13/665 ,  B60T17/228

Abstract: A locomotive brake system includes a brake cylinder with an integrated parking brake; a main reservoir; and a brake system controller for controlling the pressure in the brake cylinder. The brake system uses main reservoir pressure to pressurize the brake cylinder to achieve the parking brake output force using the brake cylinder.

公开(公告)号：US09441557B2

公开(公告)日：2016-09-13

申请号：US13802020

申请日：2013-03-13

Applicant: Ford Global Technologies, LLC

Inventor： Ross Dykstra Pursifull

IPC: F02D41/00 ,  F02M3/00 ,  B60T13/46 ,  F02M25/06 ,  F02D23/00 ,  B60T17/02

CPC classification number: F02D41/0002 ,  B60T13/46 ,  B60T17/02 ,  F02D23/00 ,  F02D41/0007 ,  F02D2250/41 ,  F02M25/06 ,  Y02T10/144 ,  Y02T10/42

Abstract: Methods and systems are provided for controlling motive flow through an ejector using a pneumatically controlled valve. A vacuum actuated valve may be opened at low vacuum conditions to increase motive flow through the ejector while the valve is closed at high vacuum conditions to decrease the motive flow. This allows motive flow through the ejector to be controlled based on vacuum needs at low component cost.

Abstract translation: 提供的方法和系统用于控制通过气动控制阀的喷射器的动力流。 真空致动阀可以在低真空条件下打开，以增加在高真空条件下关闭阀门时通过喷射器的动力流，以减少动力流量。 这允许基于真空需要以低部件成本来控制喷射器的动力流。

公开(公告)号：US08789364B2

公开(公告)日：2014-07-29

申请号：US12296995

申请日：2006-04-14

Applicant: Waikei Huen ,  Yun Li

Inventor： Waikei Huen ,  Yun Li

IPC: B60T13/46 ,  B60T17/02 ,  B60T13/52

CPC classification number: B60T13/52 ,  B60T17/02 ,  Y10T137/85986

Abstract: A vacuum assist pump system includes a vacuum assist pump for assisting to a brake system by vacuum, wherein it includes a suction compensation pump connected with the vacuum assist pump. Advantageously, a vacuum compensation reservoir is arranged between the vacuum assist pump and the suction compensation pump. The vacuum compensation reservoir comprises a vacuity sensor for its internal vacuity and two interfaces. One of the two interfaces communicates to the suction compensation pump, the other communicates to the vacuum assist pump.

Abstract translation: 真空辅助泵系统包括用于通过真空辅助制动系统的真空辅助泵，其中包括与真空辅助泵连接的吸力补偿泵。 有利地，在真空辅助泵和吸力补偿泵之间设置真空补偿容器。 真空补偿池包括一个真空传感器，用于其内部真空和两个界面。 两个接口中的一个与吸力补偿泵通信，另一个与真空辅助泵通信。

公开(公告)号：US08562080B2

公开(公告)日：2013-10-22

申请号：US12382268

申请日：2009-03-12

Applicant: Hideki Sekiguchi ,  Toshiya Oosawa ,  Satoru Watanabe ,  Tomoyuki Murakami ,  Akihiro Sato ,  Motohiro Higuma

Inventor： Hideki Sekiguchi ,  Toshiya Oosawa ,  Satoru Watanabe ,  Tomoyuki Murakami ,  Akihiro Sato ,  Motohiro Higuma

IPC: B60T13/46 ,  F02D9/06

CPC classification number: B60T8/442 ,  B60T8/4827 ,  B60T8/4872 ,  F01L1/3442 ,  F01L13/0026 ,  F02D13/023 ,  F02D13/04 ,  F02D35/023 ,  F02D41/0005 ,  F02D41/008 ,  F02D41/1497 ,  F02D41/221 ,  F02D41/3029 ,  F02D2250/18 ,  F02D2250/41 ,  Y02T10/42 ,  Y10T477/878

Abstract: A brake system provided with a brake booster using intake negative pressure of an engine for boosting a brake operating force for a vehicle. A requested braking force is detected base on an operating amount of a brake pedal, and when the requested braking force is less than a threshold value, a master cylinder pressure prevailing in the master cylinder using an operating force boosted by the brake booster is supplied to the wheel cylinder. On the other hand, when the requested braking force is greater than or equal to the threshold value, brake fluid pressure having been boosted by a pump is supplied to the wheel cylinder. The threshold value is set to a value that becomes greater the larger the negative pressure inside the brake booster.

公开(公告)号：US20070236083A1

公开(公告)日：2007-10-11

申请号：US11725443

申请日：2007-03-20

Applicant: Yutaka Kawamori ,  Sunao Kitamura ,  Yoshiki Ito ,  Kiyoshi Tsukiji

Inventor： Yutaka Kawamori ,  Sunao Kitamura ,  Yoshiki Ito ,  Kiyoshi Tsukiji

IPC: B60T13/46

CPC classification number: B60T13/52 ,  B60T17/02 ,  F02D9/1055

Abstract: A negative pressure supply apparatus for brake booster, arranged to supply an intake-pipe negative pressure in an engine intake system to a brake booster mounted in a vehicle, comprises a negative pressure supply part communicated with a bypass passage which allows part of air flowing in the intake pipe to bypass the intake pipe and supplies the intake-pipe negative pressure to the brake booster; an air ejector part placed in the bypass passage to increase the intake-pipe negative pressure and supply the increased negative pressure to the brake booster; and an open/close device including a temperature-sensitive medium, the device being placed in the bypass passage upstream of the air ejector part and configured to open and close the bypass passage.

Abstract translation: 一种用于制动助力器的负压供应装置，其布置成将发动机进气系统中的进气管负压供应到安装在车辆中的制动助力器，所述负压供应装置包括与旁通通道连通的负压供应部件，所述旁路通道允许部分空气流入 所述进气管绕过所述进气管并将所述进气管负压供给到所述制动助力器; 放置在旁路通道中的空气喷射器部分以增加进气管负压并将增加的负压提供给制动助力器; 以及包括温度敏感介质的打开/关闭装置，所述装置被放置在所述旁路通道的空气喷射器部分的上游，并被构造成打开和关闭所述旁路通道。

公开(公告)号：US20050023887A1

公开(公告)日：2005-02-03

申请号：US10629305

申请日：2003-07-29

Applicant: Gary Fulks ,  Timothy Haerr ,  Douglas Poole

Inventor： Gary Fulks ,  Timothy Haerr ,  Douglas Poole

IPC: B60T13/48 ,  B60T13/52 ,  B60T13/46

CPC classification number: B60T13/52 ,  B60T13/48

Abstract: A power brake apparatus includes a hydraulic pressure intensifier apparatus, having a hydraulic pressure intensifier controlled by a vacuum powered actuator. The hydraulic pressure intensifier defines a circuit for hydraulic fluid having an intensifier inlet for receiving hydraulic fluid from a master cylinder of the power brake apparatus at a master cylinder pressure, and an intensifier outlet for selectively delivering hydraulic pressure to a braking device at either the master cylinder pressure or at an intensified pressure higher than the master cylinder pressure. The vacuum powered actuator selectively controls the hydraulic pressure intensifier to deliver hydraulic fluid at the intensifier outlet at the master cylinder pressure when vacuum is available for providing power braking and at the intensified hydraulic pressure when vacuum is not available.

Abstract translation: 动力制动装置包括液压增压器装置，其具有由真空动力致动器控制的液压增压器。 液压增压器限定了用于液压流体的回路，其具有用于在主缸压力下从动力制动装置的主缸接收液压流体的增压器入口，以及用于在主缸处选择性地向制动装置输送液压的增压器出口 气缸压力或高于主缸压力的增压压力。 真空驱动的致动器选择性地控制液压增压器以在主气缸压力下在增压器出口处输送液压流体，当真空可用于提供动力制动时，并且当真空不可用时处于增强的液压压力。